Martínez Jaikel, Tatiana, and Xinia Elena Fernández Rojas. “Barriers and Facilitators Associated to Use Primary Health Care Services for Children Younger Than 6 Years Old, in Sentinel Sites of Costa Rica”. Población y Salud en Mesoamérica 11, no. 2 (January 1, 2014). Accessed November 25, 2024. https://revistas.ucr.ac.cr/index.php/psm/article/view/12734.